Crusher and pulverizer.



No. 546,249v

Patented Mar. 27; 1900. M. F. WILLIAMS.

CBUSHER AND PULVERIZER.

'(Application led Mar. 22, 1897.)

2 Sheets-Sheet mi nonms mins oo momu'mo.. wxsnmcron, o. c.

'M 646,249. Pafented Mar. 27, |900.

M. F. WILLIAMS.

CRUSHER AND PULVERIZER.

(Application filed Mar. 22, 1897;) (No Manel.) 2 sheets-sheet 2.

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MILfrON WILLIAMS, OF Sr'. LOUIS,MISSOURI,` ASSIGNOR To THE WILLIAMS PATENT CRUsI-IER AND PULVERIZER COMPANY, or SAME P LACII.v

CRUSHR ANDY PULVERIZER.

SPECIFICATION forming part of Letters Patent No. 646,249, dated March 27, 1900.

Application filed March 22,' 1897- Serial No. 628,566. (No model.)

machine. y Fig'isa vertical cross-sectionalf porting- Shanks This invention relates toa new and .useful view through my improved machine. Fig. 4

' is a detailed view/of one of th'esections of the grinding-surface. Fig. 5 is a detailed View ofy one of thehammenheads and one of its supimprovement in machines for Crushing 'and pulverizing ores, shale, bones, tbc., the object being to construct a machine of the character described in such manner that it will eficiently ,perform the work for which it is intended, and which machine is Asimple'gand cheap in construction and requires butV comparatively'small powe'r for operating same.

The essential features of ymy present invention reside inthe grinding-surface, the deadplate, the hammers, the valve at feed end of the machine, and, finally, in the construction, arrangement, and combination of the several parts, all as will hereinafter be described, and afterward pointed out in the claims.

In the drawings, A indicates a suitable frame, in which is mounted a shaft B.

C indicates the cover, which is preferably hinged to the rear end of the frame A; but it is obvious that this cover can as well be bolted in position.

D indicates the hammer-supports, in the form of disks strung on shaft B within the frame A. These supports are each preferably provided with eccentric series of openings, through Which through-bolts vmay be passed for-pivotally Supporting the hammer- Shanks in radially-adj usted positions.

E indicates the hammer-Shanks, which are pivotally Supported on through-bolts, said adjacent disks.

haInIner-shanks carrying at their outer ends the hammerheads or striking-points E.

'These Shanks and headsare so arranged rel ative to each other that two Shanks are em- This method of mounting theheads on the Shanks practically supports the Shanks, so that in mounting the shan ks on the through-bolts the-shank of every other hammer-head straddles the same disk, the remaining Shanks straddling This staggers the longitudinallydisposed rows ofhammer-heads relative to each other, sothat lin operation the hammer-heads will cover. the entire.v area of 'y I the dead-plate and grinding-surface. I preferably arrange the supporting-disks equidistantly apart, the thickness of each diskbeing equal to the distance'between two disks, so

that when the Shanks are arranged between the disks they will be supported against'lateral strain by the disks. 1

vF indicates the dead-plate, which is pref erably so shaped that its lower or inner pore tion is concentric, while its upperv portion is t-an'gentially disposed to the pathof the hammers. The dead-plate is mounted in a suitable carriage G, said carriage and dead-plate being adjustable relative to the strikingpoints ofthe hammers. This adjustment, as shown in Figs. land 2, is accomplished through the medium of lugs on the carriage,

bolts also passing through horizontally-dis 'through which lugs pass suitable bolts, said posed Slots in the Side framing of the machine. By loosening the nuts on the bolts the carriage and dead-plate may be adjusted inwardly and outward, Where it will be held in its adjustable position by tightening the nuts on the bolts. Threaded rods H, having hand-wheels at their Outer ends, may be employed for adjusting the carriage and deadplate. This bodily adjustment of the deadplate relative to the hammers I consider an important feature in my machine in that wear of the deadplate .can be compensated for TOO withoutnecessitating the renewal of the deadplate. Again, by forming a dead-plate with a curved portion and atangentially-disposed portion the hammers will first crush the material 0r break it into line particles, after which the hammers will act upon the material on the dead-plate, effecting a grinding action until the material is carried beyond the dead s plate onto the grindingsurface, which forms practically a continuation of the curved-portion of the dead-plate.

VThe inclination of the dead-plate downwardly toward the hammers in their acting position to draw the material in and with the inner edge directly adjacent'to the path of the hammers and a concaved cage coacting Vwith the hammers to crush the material is vided with eccentrically disposed or inclined,

. runners t', which coperate withcorrespondingly-inclined supports on the framing of the machine. By the above construction it will be noted that as the carriage and dead-plate are adjusted inwardly to compensate for wear the flrstsection of the grinding-surface abutting against the dead-platev will be moved to the rear, as will also all of the sections of the A,grinding-surface, and this rear movement of the sections will cause the eccentrically-disposedrunners to ride up on their supports or toward the axis of rotation of the hammers.

' The adjustment of the dead-plate,v therefore,

also accomplishes the radial` adjustment of the grinding-surface to compensate for its wear, as well as the wear of the dead-plate. The grinding-surface in order to be adjusted coincidentally with the adjustment of the dead-plate must be held yieldingly against said dead-plate, and in Vorder to effect this I provide a spring or springs J, cooperating between a xed abutment at one end and against the grinding-surface at its other end, the tension of said spring being exerted in a direc- .tion toward the dead-plate. This spring also holds the grinding-surface against the action of the hammers, so that if any material is caught in the openings of the grinding-surface and struck by the hammers the grindingsurface will yield slightly under the blow. I preferably arrange this spring to engage the last section of the grinding-surface, so that it will affect the sections in front of it. Other springs might be employed on the other sections in the 'same manner as the springs on the last section, if desired, or the ends of the grinding-sections might project through the side framing andthe springs to be located out of path of falling material.

A curtain K is preferably arranged between the spring .I and the grinding-surface to shield the spring from dying particles passing through the openin gs in the grinding-surface.

Practicalexperience has demonstrated that the side framing of the machine is liable to wearor be ground out at a point close to the grinding-surface, and in order to save the framing of the machine I prefer tointroduce linings L, as shown in Figs. 2 and 3, to save the wear of the framing of the machine. I have also found that any material carried beyond the grinding-surface will wear the cover, and in order to save the cover I prefer to arrange a wear plate M therein, which forms practicallya continuation of the grinding-surface, but at av greater radial distance from the hammers. i

N indicates a valve, preferably gravitating, arranged at the feed end of the machine, so as to close the opening in said feed end or so much thereofas the materialbeing fed to the machine will permit. This valve, in addition to performing the above function, which prci vents the exit of dust, `will also act as a defiecting-lip, as shown by dotted lines in Fig.

Q, to direct the air circulating in the direction.wm

ot' the revolving hammers inwardly. /This valve is provided with an adjustable portion n, which forms practicallyan extension of the valve and carries `the defiectng-lip inwardly a sufficient distance `to compensate `for the wear of the` hammers, thus locating the end of said deectin g-li p in close proximity to the path of the hammers- 'n of this valve N is only adjusted tolengthen the valve Whenever the hammers are worn, and any such adjustment when made must necessarily not extend inwardly'to such adistance as to place the adjustable plate in the pathof the hammersf l" The reason for this is obvious, as the hammers would Astrike said plate andsoon destroy the same. When the material is being fed in to the machine, it only raises valve N to such an extent as to permit said material to pass freely into the machine. Thus no free opening ismade for the exit of dust; but, on the contrary, the circulating air in the 'machinestrikes the valve and is deflected inwardly,ereatinga suction at the feed end of the machine which tends to draw the material and dust inwardly.

It will be noted that when the hammers are worn they may be readily adjusted by withdrawing the through-bolt and placing the through-bolt in another opening in the eccentrically-disposed series of openings for the through-bolts. This feature, however, forms the subject-matter of a pending application.

The operation of the machine is obvious. By adjusting the radial position of the striking-points of the hammers, adjusting the position of the dead-plate, adjusting the radial position of the grinding-surface, and adjusting thclength of the valve andli p enables the The adjustable platev I ro machine to be operated for a long period of time before it is necessary to replace the parts by reason of wear.

I am aware that manyminor changes inthe construction, arrangement, and combination of the several parts of my device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

Having thus described myinvention, what I claim, and desire to secure by Letters Patent of the United States, is-

l. In a crusher and pulverizer, the combination with a suitable casing, yof pivoted revolving hammers, a concentrically-arranged grinding-surface cooperating therewith, cccentrically-arranged runners or supports at the sides of said grinding-surface, and correspondingly-arranged supports on the casing for cooperating with said eccentrically-ar-y ranged runners, substantially as described.

2. In a crusher and pulverizer, the combi-` nation with a suitable casing, of pivoted revolving hammers, a concentrically-arranged grinding-surface composed of independentlymovable sections, eccen-trically-disposed runners at the sides` of each section, and supports extending from the sides of the casing.

with whichv saidrunners cooperate, substantially as described.

3. In a crusher and pulverizer, the combination with pivoted, revolvinghammers, of a grinding-surface for cooperating with said hammers, and ymeans coperating'with the rear end of the grinding-surface for yieldingly holding thesame against the action of the hammers; said means permitting a limited\concentric movement of the grindingsurface, substantially as described. j j

4. In a crusher and pulverizer, the combination with pivoted, revolving hammers, of a grinding-surface for coperating with said hammers, said grinding-surface being composed of sections arranged end to end, eachl of said sections having eccentrically-disposed runners,eccentrically-disposed guides orsupports for said runners, and means for yield` ingly holding said sections to their kseats and against the action. of the hammers; substantially as described.

5. In a crusher and pulverizer, the combi-l nationv with pivoted, revolving hammers and means for adjusting the striking-points of able grinding-surface having 'its front end abutting against the dead-plate, and :means for adjusting the dead-plate, which adjustment of the dead-plate effects a similar adjustment of the grinding-surface', relative to thehammers, substantially as described.

7. In a crusher and pulverizer, the combination with pivoted, revolving hammers, of an adjustable dead-plate, and agrinding-surface composed of sections, each of said sections being provided with eccentrically-disposed runners which coperate with corresponding supports on Vthe frame of the machine, all of said sections abutting against each other, and the front section abutting against the dead plate, whereby, when the dead-plate is adjusted inwardly, it moves said grinding-sections along their eccentricallyvdisposed supports, and in toward the axis of rotation of the hammers;

substantially as described. v l

8. In a crusher and pulverizer, the combii Anation with pivoted, revolving hammers, of

an adjustabledead-plate, a grinding-surface composed of sections, each of said sections vbeing Aprovided with eecentrically-disposed'` justed inwardly, it moves said grinding-seel tionslalon g theireccentrically-disposed supports, and in toward the axis of rotation of tions` together and against the ldead-plate;v

substantially as described.

9; In a crusher and pulverizer, the combinationwith pivoted, revolving hammers,'of

an adjustable dead-plate, a grinding-surface composed .of sections, each ofvsaid sections being provided with eccentrically-disposed runners which coperate with corresponding tions along their eccentrically-disposed supl ports,l and-in toward the axis of rotation of the hammers, and a spring on the last section Whose tension is exerted to hold all of saidsections together and against the deadplate; substantially as described.

10. In a crusher and pulverizer, the combinationwith pivoted revolving hammers, of

IOO

lthe hammers, and means for holding said sec- IOS IIO

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meansfor adjusting the radial position of 1 the striking-points of 'said hammers, an adjustable dead-plate, a concentrically-movable grinding-surface having its front end abutting against the dead-plate, and means for adjusting the dead-plate, which adjustment of the dead-plate e'ectsa similar adjustment of the grinding-surface relative to the hammers, substantially as described.

11. In a crusher and pulverizer, the combination With a suitable casing comprising a frame and a cover, of a'hopper arranged at the feed end of the machine, a valvehinged to the lower inner edge of said hopper, and adapted to coperate with, and be limited in its rearwardlyopening movement by, the front edge of the cover, a shaft mounted in said casing, pivoted hammers carried by said shaft, a dead-plate tangentially arranged under the hopper, and a concentricaily-arranged grinding-surface having its front end touching against said dead-plate, substantially as described.

12. In a crusher and pulverizer, the combination with pivoted, revolving hammers, of a dead-plate arranged at the feed end of the machine, a valve pivoted above said deadplate for closing the feed end of the machine, said valve, when raised, acting as a deflecting-lip for the circulating air and material" within the casing of the machine, and an adjust-able extension on said valve; substantially as described.

13. In a Crusher and pulverizer, the combination with pivoted, revolving' hammers, of means for adjusting the radial position of said hammers, an adjustablevdead-plate arranged at thefeed endof the machine, and an adjustable swinging valve, which, in a raised position, extends intothe casing ot' the machine adjacent to the path of the hammers Where i-t actsv as a deflecting-lip; substantially as described.

14. In a Crusher and pulverizer, the combination with pivoted, revolving hammers, and the casing in which said hammers are mounted, of a grinding-surface for coperatingwith hammers, and a removable Wear-plate arsupports thereon, hammers pivotally mount-A ed in said supports, an adjustable dead-plate inclined downwardly toward the hammers in their acting position to draw the material in, and with its inner edge directly adjacent to the path of the hammers, and a concave cage which, with said dead-plate, coacts with the hammers to crushsaid material.

16. `In a Crusher and pulverizer, the combination with a casing, pivoted revolving `hammers and means `for driving the same, of means for adjusting the radial position of the striking-points of said hammers, and a deadplate cooperating Withthe adjustable striking-points of said hammers, and Ameans 'for adjusting the dead-plate to vary its position relative to the path of the hammers, subst-antially as described.

In testimony whereof I hereunto aix my signature, in presence of two'witnesses, this 15th day of March, 1897.

MILTON WILLIAMS.

Witnesses:

F. R. CoRNWALL, "HUGH ILWAGNER.` 

